import os
import hashlib
import inspect
import datetime
from problem import proxies, exception, tools, watch
try:
from _pyabrt import *
except ImportError:
try:
from _py3abrt import *
except ImportError:
from problem._py3abrt import *
JAVA = 'java'
SELINUX = 'selinux'
CCPP = 'CCpp'
PYTHON = 'Python'
PYTHON3 = 'Python3'
KERNELOOPS = 'Kerneloops'
RUNTIME = 'runtime'
XORG = 'xorg'
UNKNOWN = 'libreport'
REQUIRED_FIELDS = ['executable']
PREFETCH_FIELDS = [
# core fields
'component', 'hostname', 'os_release', 'uid',
'username', 'architecture', 'kernel', 'package',
'time', 'count', 'pkg_arch', 'pkg_name',
'pkg_epoch', 'pkg_version', 'pkg_release',
'uuid',
# type specific
'cgroup', 'core_backtrace', 'backtrace',
'dso_list', 'exploitable', 'maps',
'cmdline', 'environ', 'open_fds', 'pid',
'proc_pid_status', 'limits', 'var_log_messages',
'suspend_stats', 'reported_to', 'event_log',
'dmesg',
]
PROBLEM_TYPES = {
'JAVA': JAVA,
'SELINUX': SELINUX,
'CCPP': CCPP,
'PYTHON': PYTHON,
'PYTHON3': PYTHON3,
'KERNELOOPS': KERNELOOPS,
'RUNTIME': RUNTIME,
'XORG': XORG,
'UNKNOWN': UNKNOWN,
}
class Problem(object):
'''
Base class for the other problem types.
No need to use this class directly, use one
of the specific problem classes.
'''
def __init__(self, typ, reason, analyzer=None):
self._data = dict()
self._dirty_data = dict()
self._persisted = False
self._proxy = None
self._probdir = None
self._id = None
self.type = typ
if analyzer is None:
self.analyzer = typ
self.reason = reason
self._proxy = proxies.get_proxy()
def __cast(self, attr, val, reverse=False):
# str with digits -> int
if not reverse and type(val) == str and val.isdigit():
val = int(val)
# by attr name
mapping = {
'time': (datetime.datetime.fromtimestamp,
lambda x: x.strftime('%s'))
}
if attr in mapping:
fun, revfun = mapping[attr]
if reverse:
fun = revfun
val = fun(val)
if reverse:
return str(val)
return val
def __getattr__(self, attr):
exc = AttributeError("object has no attribute '{0}'".format(attr))
val = None
# was deleted before?
if attr in self._dirty_data and self._dirty_data[attr] is None:
raise exc
if attr in self._data:
val = self._data[attr]
# try to fetch the item
if self._persisted:
val = self._proxy.get_item(self._probdir, attr)
self._data[attr] = val
if val is None:
raise exc
val = self.__cast(attr, val)
super(Problem, self).__setattr__(attr, val)
return val
def __setattr__(self, attr, value):
super(Problem, self).__setattr__(attr, value)
if not attr[0] == '_':
self._data[attr] = value
if self._persisted:
self._dirty_data[attr] = value
def __delattr__(self, attr):
# it might not be loaded at first
self.__getattr__(attr)
super(Problem, self).__delattr__(attr)
del self._data[attr]
if self._persisted:
self._dirty_data[attr] = None
def __getitem__(self, attr):
try:
return self.__getattr__(attr)
except AttributeError as e:
raise KeyError(e)
def __setitem__(self, attr, value):
self.__setattr__(attr, value)
def __delitem__(self, attr):
try:
self.__delattr__(attr)
except AttributeError as e:
raise KeyError(e)
def __repr__(self):
return '<problem.{0} ({1})>'.format(self.__class__.__name__, self.reason)
def add_current_process_data(self):
''' Add pid, gid and executable of current
process to this problem object
'''
self.pid = os.getpid()
self.gid = os.getgid()
#self.executable = os.readlink('/proc/{0}/exe'.format(os.getpid()))
# ^ always '/usr/bin/python' so we need:
self.executable = os.path.abspath(inspect.stack()[-1][1])
def add_current_environment(self):
''' Add environment of current process to this problem object '''
self.environ = ''
for key, value in os.environ.items():
self.environ += '{0}={1}\n'.format(key, value)
def prefetch_data(self):
''' Prefetch possible data fields of this problem '''
if not self._persisted:
return
for field in PREFETCH_FIELDS:
try:
self.__getattr__(field)
except AttributeError:
pass
@property
def path(self):
if self._persisted:
return self._probdir
return None
@property
def id(self):
if not self._id and self._persisted:
self._id = hashlib.sha1(self.path.encode('utf-8')).hexdigest()
return self._id
@property
def short_id(self):
if not self.id:
return None
return self.id[:7]
@property
def not_reportable(self):
return hasattr(self, 'not-reportable')
@not_reportable.setter
def not_reportable(self, value):
if isinstance(value, bool):
if value:
setattr(self, 'not-reportable', '')
else:
delattr(self, 'not-reportable')
else: # if value is used as reason
setattr(self, 'not-reportable', value)
@property
def not_reportable_reason(self):
if hasattr(self, 'not-reportable'):
return getattr(self, 'not-reportable')
return None
@not_reportable_reason.setter
def not_reportable_reason(self, value):
setattr(self, 'not-reportable', value)
def items(self):
return self._data.items()
def validate(self):
for field in REQUIRED_FIELDS:
if not hasattr(self, field):
raise exception.ValidationError(
'Missing required field {0}'.format(field))
def save(self):
''' Create this problem or update modified data
Create or update the project if some of its fields
were modified.
Return ``None`` in case of modification, identifier
if new problem was created.
'''
self.validate()
# convert to strings
str_data = dict()
for key, value in self._data.items():
str_data[str(key)] = self.__cast(key, value, reverse=True)
# already persisted?
if self._persisted:
for key, value in self._dirty_data.items():
if value is None:
self._proxy.del_item(self._probdir, key)
else:
self._proxy.set_item(self._probdir, key,
self.__cast(key, value, reverse=True))
self._dirty_data = dict()
else:
# create
ret = self._proxy.create(str_data)
self._persisted = True
self._probdir = str(ret)
return self._probdir
def delete(self):
''' Delete this problem '''
if self._persisted:
self._proxy.delete(self._probdir)
self._persisted = False
self._probdir = None
self._dirty_data = {}
def chown(self):
''' Assures ownership of a problem for the caller '''
if self._persisted:
self._proxy.chown(self._probdir)
class Java(Problem):
''' Java problem '''
def __init__(self, reason):
super(Java, self).__init__(JAVA, reason)
class Selinux(Problem):
''' Selinux problem '''
def __init__(self, reason):
super(Selinux, self).__init__(SELINUX, reason)
class Ccpp(Problem):
''' C, C++ problem '''
def __init__(self, reason):
super(Ccpp, self).__init__(CCPP, reason)
class Python(Problem):
''' Python problem '''
def __init__(self, reason):
super(Python, self).__init__(PYTHON, reason)
class Python3(Problem):
''' Python3 problem '''
def __init__(self, reason):
super(Python3, self).__init__(PYTHON3, reason)
class Kerneloops(Problem):
''' Kerneloops problem '''
def __init__(self, reason):
super(Kerneloops, self).__init__(KERNELOOPS, reason)
class Xorg(Problem):
''' Xorg problem '''
def __init__(self, reason):
super(Xorg, self).__init__(XORG, reason)
class Runtime(Problem):
''' Runtime problem '''
def __init__(self, reason):
super(Runtime, self).__init__(RUNTIME, reason)
class Unknown(Problem):
''' Unknown problem '''
def __init__(self, reason):
super(Unknown, self).__init__('libreport', reason)
def list(auth=False, __proxy=proxies.get_proxy()):
''' Return the list of the problems
Use ``auth=True`` if authentication should be attempted.
If authentication via polkit fails, function behaves
as if ``auth=False`` was specified (only users problems are
returned).
'''
fun = __proxy.list
if auth:
fun = __proxy.list_all
return [tools.problemify(prob, __proxy) for prob in fun()]
def get(identifier, auth=False, __proxy=proxies.get_proxy()):
''' Return problem object matching ``identifier``
Return ``None`` in case the problem does not exist.
Use ``auth=True`` if authentication should be attempted.
'''
fun = __proxy.list
if auth:
fun = __proxy.list_all
if identifier not in fun():
return None
return tools.problemify(identifier, __proxy)
def get_problem_watcher(auth=False):
''' Return ``ProblemWatcher`` object which can be used
to attach callbacks called when new problem is created
Use ``auth=True`` if authentication should be attempted for
new problem that doesn't belong to current user. If not
set such a problem is ignored.
'''
return watch.ProblemWatcher(auth)